// MDL-84465 This file will be removed on LMS on version 6.0. The app should maintain it until 6.0 is not supported by the app.

/**
 * Some backwards compatibility for Bootstrap v4.
 */

// stylelint-disable declaration-no-important
// stylelint-disable max-line-length
// stylelint-disable property-disallowed-list
// stylelint-disable selector-no-qualifying-type

//
// '.media' component
//

.media {
    display: flex;
    align-items: flex-start;
}

.media-body {
    flex: 1;
}

//
// Badge colours and pills
//

$badge-focus-width: $input-btn-focus-width !default;
$yiq-text-dark:  $gray-900 !default;
$yiq-text-light: $white !default;
$yiq-contrasted-threshold: 128;

@function color-yiq($color, $dark: $yiq-text-dark, $light: $yiq-text-light) {
    $r: red($color);
    $g: green($color);
    $b: blue($color);
    $yiq: (($r * 299) + ($g * 587) + ($b * 114)) * .001;
    @if ($yiq >= $yiq-contrasted-threshold) {
        @return $dark;
    }
    @else {
        @return $light;
    }
}

@mixin hover-focus() {
    &:hover,
    &:focus {
        @content;
    }
}

@mixin badge-variant($bg) {
    color: color-yiq($bg);
    background-color: $bg;

    @at-root a#{&} {
        @include hover-focus() {
            color: color-yiq($bg);
            background-color: darken($bg, 10%);
        }

        &:focus,
        &.focus {
            outline: 0;
            box-shadow: 0 0 0 $badge-focus-width rgba($bg, .5);
        }
    }
}

@each $color, $value in $theme-colors {
    .badge-#{$color} {
        @include badge-variant($value);
    }
}

$badge-pill-padding-x: .6em !default;
$badge-pill-border-radius: 10rem !default;

.badge-pill {
    padding-right: $badge-pill-padding-x;
    padding-left: $badge-pill-padding-x;
    @include border-radius($badge-pill-border-radius);
}

//
// '.form-group' and '.form-inline'
//

$form-group-margin-bottom: 1rem !default;

.form-group {
    margin-bottom: $form-group-margin-bottom;
}

$form-check-input-margin-x: .25rem !default;

.form-inline {
    display: flex;
    flex-flow: row wrap;
    align-items: center;

    .form-check {
        width: 100%;
    }

    @include media-breakpoint-up(sm) {
        label {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0;
        }

        .form-group {
            display: flex;
            flex: 0 0 auto;
            flex-flow: row wrap;
            align-items: center;
            margin-bottom: 0;
        }

        .form-control {
            display: inline-block;
            width: auto;
            vertical-align: middle;
        }

        .form-control-plaintext {
            display: inline-block;
        }

        .input-group,
        .custom-select {
            width: auto;
        }

        .form-check {
            display: flex;
            align-items: center;
            justify-content: center;
            width: auto;
            padding-left: 0;
        }
        .form-check-input {
            position: relative;
            flex-shrink: 0;
            margin-top: 0;
            margin-right: $form-check-input-margin-x;
            margin-left: 0;
        }

        .custom-control {
            align-items: center;
            justify-content: center;
        }
        .custom-control-label {
            margin-bottom: 0;
        }
    }
}

//
// '.card-deck'
//

$card-deck-margin: 30px * .5 !default;

.card-deck {
    .card {
        margin-bottom: $card-deck-margin;
    }

    @include media-breakpoint-up(sm) {
        display: flex;
        flex-flow: row wrap;
        margin-right: -$card-deck-margin;
        margin-left: -$card-deck-margin;

        .card {
            flex: 1 0 0%;
            margin-right: $card-deck-margin;
            margin-bottom: 0; // Override the default
            margin-left: $card-deck-margin;
        }
    }
}

//
// '.no-gutters'
//

.no-gutters {
    margin-right: 0;
    margin-left: 0;
    > .col,
    > [class*="col-"] {
        padding-right: 0;
        padding-left: 0;
    }
}

//
// Spacing and layout utilities
//

@each $breakpoint in map-keys($grid-breakpoints) {
    @include media-breakpoint-up($breakpoint) {
        $infix: breakpoint-infix($breakpoint, $grid-breakpoints);

        @each $prop, $abbrev in (margin: m, padding: p) {
            @each $size, $length in $spacers {
                .#{$abbrev}r#{$infix}-#{$size} {
                    #{$prop}-right: $length !important;
                }
                .#{$abbrev}l#{$infix}-#{$size} {
                    #{$prop}-left: $length !important;
                }
            }
        }

        // Negative margins (e.g., where `.mb-n1` is negative version of `.mb-1`)
        @each $size, $length in $spacers {
            @if "#{$size}" != "0" {
                .mr#{$infix}-n#{$size} {
                    margin-right: -$length !important;
                }
                .ml#{$infix}-n#{$size} {
                    margin-left: -$length !important;
                }
            }
        }

        // Some special margin utils
        .mr#{$infix}-auto {
            margin-right: auto !important;
        }
        .ml#{$infix}-auto {
            margin-left: auto !important;
        }
    }
}

//
// '.text-left and '.text-right'
//

@each $breakpoint in map-keys($grid-breakpoints) {
    @include media-breakpoint-up($breakpoint) {
        $infix: breakpoint-infix($breakpoint, $grid-breakpoints);

        .text#{$infix}-left {
            text-align: left !important;
        }
        .text#{$infix}-right {
            text-align: right !important;
        }
    }
}

//
// Borders
//

.border-right {
    border-right: $border-width solid $border-color !important;
}
.border-left {
    border-left: $border-width solid $border-color !important;
}
.border-right-0 {
    border-right: 0 !important;
}
.border-left-0 {
    border-left: 0 !important;
}
.rounded-right {
    border-top-right-radius: $border-radius !important;
    border-bottom-right-radius: $border-radius !important;
}
.rounded-left {
    border-top-left-radius: $border-radius !important;
    border-bottom-left-radius: $border-radius !important;
}

//
// '.float-left and '.float-right'
//

@each $breakpoint in map-keys($grid-breakpoints) {
    @include media-breakpoint-up($breakpoint) {
        $infix: breakpoint-infix($breakpoint, $grid-breakpoints);

        .float#{$infix}-left {
            float: left !important;
        }
        .float#{$infix}-right {
            float: right !important;
        }
    }
}

//
// '.close'
//
$close-font-size: $font-size-base * 1.5 !default;
$close-font-weight: $font-weight-bold !default;
$close-color: $black !default;
$close-text-shadow: 0 1px 0 $white !default;

@mixin hover() {
    &:hover {
        @content;
    }
}

.close {
    float: right;
    @include rfs-font-size($close-font-size);
    font-weight: $close-font-weight;
    line-height: 1;
    color: $close-color;
    text-shadow: $close-text-shadow;
    opacity: .5;

    // Override <a>'s hover style
    @include hover() {
        color: $close-color;
        text-decoration: none;
    }

    &:not(:disabled):not(.disabled) {
        @include hover-focus() {
            opacity: .75;
        }
    }
}

button.close {
    padding: 0;
    background-color: transparent;
    border: 0;
}

a.close.disabled {
    pointer-events: none;
}

//
// Font utilities
//

.font-weight-light {
    font-weight: $font-weight-light !important;
}
.font-weight-lighter {
    font-weight: $font-weight-lighter !important;
}
.font-weight-normal {
    font-weight: $font-weight-normal !important;
}
.font-weight-bold {
    font-weight: $font-weight-bold !important;
}
.font-weight-bolder {
    font-weight: $font-weight-bolder !important;
}
.font-italic {
    font-style: italic !important;
}

//
// Rounded sizes
//
.rounded-sm {
    border-radius: $border-radius-sm !important;
}
.rounded-lg {
    border-radius: $border-radius-lg !important;
}

// Screen reader only.
@mixin sr-only() {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px; // Fix for https://github.com/twbs/bootstrap/issues/25686
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@mixin sr-only-focusable() {
    &:active,
    &:focus {
        position: static;
        width: auto;
        height: auto;
        overflow: visible;
        clip: auto;
        white-space: normal;
    }
}

.sr-only, .accesshide {
    @include sr-only();
}

.sr-only-focusable {
    @include sr-only-focusable();
}

//
// Custom controls
//

$custom-control-gutter:                 .5rem !default;
$custom-control-spacer-x:               1rem !default;
$custom-control-cursor:                 null !default;
$custom-control-indicator-size:         1rem !default;
$custom-control-indicator-bg:           $input-bg !default;
$custom-control-indicator-bg-size:      50% 50% !default;
$custom-control-indicator-box-shadow:   $input-box-shadow !default;
$custom-control-indicator-border-color: $gray-500 !default;
$custom-control-indicator-border-width: 1px !default;
$custom-control-label-color:            null !default;
$custom-control-indicator-disabled-bg:          $input-disabled-bg !default;
$custom-control-label-disabled-color:           $gray-600 !default;
$custom-control-indicator-checked-color:        $component-active-color !default;
$custom-control-indicator-checked-bg:           $component-active-bg !default;
$custom-control-indicator-checked-disabled-bg:  rgba(map-get($theme-colors, 'primary'), .5) !default;
$custom-control-indicator-checked-box-shadow:   null !default;
$custom-control-indicator-checked-border-color: $custom-control-indicator-checked-bg !default;
$custom-control-indicator-focus-box-shadow:     $input-focus-box-shadow !default;
$custom-control-indicator-focus-border-color:   $input-focus-border-color !default;
$custom-control-indicator-active-color:         $component-active-color !default;
$custom-control-indicator-active-bg:            lighten($component-active-bg, 35%) !default;
$custom-control-indicator-active-box-shadow:    null !default;
$custom-control-indicator-active-border-color:  $custom-control-indicator-active-bg !default;
$custom-checkbox-indicator-border-radius:       $border-radius !default;
$custom-checkbox-indicator-icon-checked:        url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'><path fill='#{$custom-control-indicator-checked-color}' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26l2.974 2.99L8 2.193z'/></svg>") !default;
$custom-checkbox-indicator-indeterminate-bg:           $component-active-bg !default;
$custom-checkbox-indicator-indeterminate-color:        $custom-control-indicator-checked-color !default;
$custom-checkbox-indicator-icon-indeterminate:         url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'><path stroke='#{$custom-checkbox-indicator-indeterminate-color}' d='M0 2h4'/></svg>") !default;
$custom-checkbox-indicator-indeterminate-box-shadow:   null !default;
$custom-checkbox-indicator-indeterminate-border-color: $custom-checkbox-indicator-indeterminate-bg !default;
$custom-radio-indicator-border-radius:          50% !default;
$custom-radio-indicator-icon-checked:           url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='-4 -4 8 8'><circle r='3' fill='#{$custom-control-indicator-checked-color}'/></svg>") !default;
$custom-switch-width:                           $custom-control-indicator-size * 1.75 !default;
$custom-switch-indicator-border-radius:         $custom-control-indicator-size * .5 !default;
$custom-switch-indicator-size:                  subtract($custom-control-indicator-size, $custom-control-indicator-border-width * 4) !default;
$custom-select-padding-y:           $input-padding-y !default;
$custom-select-padding-x:           $input-padding-x !default;
$custom-select-font-family:         $input-font-family !default;
$custom-select-font-size:           $input-font-size !default;
$custom-select-height:              $input-height !default;
$custom-select-indicator-padding:   1rem !default; // Extra padding to account for the presence of the background-image based indicator
$custom-select-font-weight:         $input-font-weight !default;
$custom-select-line-height:         $input-line-height !default;
$custom-select-color:               $input-color !default;
$custom-select-disabled-color:      $gray-600 !default;
$custom-select-bg:                  $input-bg !default;
$custom-select-disabled-bg:         $gray-200 !default;
$custom-select-bg-size:             8px 10px !default; // In pixels because image dimensions
$custom-select-indicator-color:     $gray-800 !default;
$custom-select-indicator:           url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='4' height='5' viewBox='0 0 4 5'><path fill='#{$custom-select-indicator-color}' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>") !default;
$custom-select-background:          escape-svg($custom-select-indicator) right $custom-select-padding-x center / $custom-select-bg-size no-repeat !default; // Used so we can have multiple background elements (e.g., arrow and feedback icon)
$custom-select-feedback-icon-padding-right: add(1em * .75, (2 * $custom-select-padding-y * .75) + $custom-select-padding-x + $custom-select-indicator-padding) !default;
$custom-select-feedback-icon-position:      center right ($custom-select-padding-x + $custom-select-indicator-padding) !default;
$custom-select-feedback-icon-size:          $input-height-inner-half $input-height-inner-half !default;
$custom-select-border-width:        $input-border-width !default;
$custom-select-border-color:        $input-border-color !default;
$custom-select-border-radius:       $border-radius !default;
$custom-select-box-shadow:          inset 0 1px 2px rgba($black, .075) !default;
$custom-select-focus-border-color:  $input-focus-border-color !default;
$custom-select-focus-width:         $input-focus-width !default;
$custom-select-focus-box-shadow:    0 0 0 $custom-select-focus-width $input-btn-focus-color !default;
$custom-select-padding-y-sm:        $input-padding-y-sm !default;
$custom-select-padding-x-sm:        $input-padding-x-sm !default;
$custom-select-font-size-sm:        $input-font-size-sm !default;
$custom-select-height-sm:           $input-height-sm !default;
$custom-select-padding-y-lg:        $input-padding-y-lg !default;
$custom-select-padding-x-lg:        $input-padding-x-lg !default;
$custom-select-font-size-lg:        $input-font-size-lg !default;
$custom-select-height-lg:           $input-height-lg !default;
$custom-range-track-width:          100% !default;
$custom-range-track-height:         .5rem !default;
$custom-range-track-cursor:         pointer !default;
$custom-range-track-bg:             $gray-300 !default;
$custom-range-track-border-radius:  1rem !default;
$custom-range-track-box-shadow:     inset 0 .25rem .25rem rgba($black, .1) !default;
$custom-range-thumb-width:                   1rem !default;
$custom-range-thumb-height:                  $custom-range-thumb-width !default;
$custom-range-thumb-bg:                      $component-active-bg !default;
$custom-range-thumb-border:                  0 !default;
$custom-range-thumb-border-radius:           1rem !default;
$custom-range-thumb-box-shadow:              0 .1rem .25rem rgba($black, .1) !default;
$custom-range-thumb-focus-box-shadow:        0 0 0 1px $body-bg, $input-focus-box-shadow !default;
$custom-range-thumb-focus-box-shadow-width:  $input-focus-width !default; // For focus box shadow issue in IE/Edge
$custom-range-thumb-active-bg:               lighten($component-active-bg, 35%) !default;
$custom-range-thumb-disabled-bg:             $gray-500 !default;
$custom-file-height:                $input-height !default;
$custom-file-height-inner:          $input-height-inner !default;
$custom-file-focus-border-color:    $input-focus-border-color !default;
$custom-file-focus-box-shadow:      $input-focus-box-shadow !default;
$custom-file-disabled-bg:           $input-disabled-bg !default;
$custom-file-padding-y:             $input-padding-y !default;
$custom-file-padding-x:             $input-padding-x !default;
$custom-file-line-height:           $input-line-height !default;
$custom-file-font-family:           $input-font-family !default;
$custom-file-font-weight:           $input-font-weight !default;
$custom-file-color:                 $input-color !default;
$custom-file-bg:                    $input-bg !default;
$custom-file-border-width:          $input-border-width !default;
$custom-file-border-color:          $input-border-color !default;
$custom-file-border-radius:         $input-border-radius !default;
$custom-file-box-shadow:            $input-box-shadow !default;
$custom-file-button-color:          $custom-file-color !default;
$custom-file-button-bg:             $input-group-addon-bg !default;
$custom-file-text: (
    en: "Browse"
) !default;
$custom-forms-transition:               background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;

.custom-control {
    position: relative;
    z-index: 1;
    display: block;
    min-height: $font-size-base * $line-height-base;
    padding-left: $custom-control-gutter + $custom-control-indicator-size;
    print-color-adjust: exact;
}

.custom-control-inline {
    display: inline-flex;
    margin-right: $custom-control-spacer-x;
}

.custom-control-input {
    position: absolute;
    left: 0;
    z-index: -1;
    width: $custom-control-indicator-size;
    height: ($font-size-base * $line-height-base + $custom-control-indicator-size) * .5;
    opacity: 0;
    &:checked ~ .custom-control-label::before {
        color: $custom-control-indicator-checked-color;
        border-color: $custom-control-indicator-checked-border-color;
        @include gradient-bg($custom-control-indicator-checked-bg);
        @include box-shadow($custom-control-indicator-checked-box-shadow);
    }
    &:focus ~ .custom-control-label::before {
        @if $enable-shadows {
            box-shadow: $input-box-shadow, $custom-control-indicator-focus-box-shadow;
        }
        @else {
            box-shadow: $custom-control-indicator-focus-box-shadow;
        }
    }
    &:focus:not(:checked) ~ .custom-control-label::before {
        border-color: $custom-control-indicator-focus-border-color;
    }
    &:not(:disabled):active ~ .custom-control-label::before {
        color: $custom-control-indicator-active-color;
        background-color: $custom-control-indicator-active-bg;
        border-color: $custom-control-indicator-active-border-color;
        @include box-shadow($custom-control-indicator-active-box-shadow);
    }
    &[disabled],
    &:disabled {
        ~ .custom-control-label {
            color: $custom-control-label-disabled-color;
            &::before {
                background-color: $custom-control-indicator-disabled-bg;
            }
        }
    }
}

.custom-control-label {
    position: relative;
    margin-bottom: 0;
    color: $custom-control-label-color;
    vertical-align: top;
    cursor: $custom-control-cursor;
    &::before {
        position: absolute;
        top: ($font-size-base * $line-height-base - $custom-control-indicator-size) * .5;
        left: -($custom-control-gutter + $custom-control-indicator-size);
        display: block;
        width: $custom-control-indicator-size;
        height: $custom-control-indicator-size;
        pointer-events: none;
        content: "";
        background-color: $custom-control-indicator-bg;
        border: $custom-control-indicator-border-width solid $custom-control-indicator-border-color;
        @include box-shadow($custom-control-indicator-box-shadow);
    }
    &::after {
        position: absolute;
        top: ($font-size-base * $line-height-base - $custom-control-indicator-size) * .5;
        left: -($custom-control-gutter + $custom-control-indicator-size);
        display: block;
        width: $custom-control-indicator-size;
        height: $custom-control-indicator-size;
        content: "";
        background: 50% / #{$custom-control-indicator-bg-size} no-repeat;
    }
}

.custom-checkbox {
    .custom-control-label::before {
        @include border-radius($custom-checkbox-indicator-border-radius);
    }
    .custom-control-input:checked ~ .custom-control-label {
        &::after {
            background-image: escape-svg($custom-checkbox-indicator-icon-checked);
        }
    }
    .custom-control-input:indeterminate ~ .custom-control-label {
        &::before {
            border-color: $custom-checkbox-indicator-indeterminate-border-color;
            @include gradient-bg($custom-checkbox-indicator-indeterminate-bg);
            @include box-shadow($custom-checkbox-indicator-indeterminate-box-shadow);
        }
        &::after {
            background-image: escape-svg($custom-checkbox-indicator-icon-indeterminate);
        }
    }
    .custom-control-input:disabled {
        &:checked ~ .custom-control-label::before {
            @include gradient-bg($custom-control-indicator-checked-disabled-bg);
        }
        &:indeterminate ~ .custom-control-label::before {
            @include gradient-bg($custom-control-indicator-checked-disabled-bg);
        }
    }
}

.custom-radio {
    .custom-control-label::before {
        border-radius: $custom-radio-indicator-border-radius;
    }
    .custom-control-input:checked ~ .custom-control-label {
        &::after {
            background-image: escape-svg($custom-radio-indicator-icon-checked);
        }
    }
    .custom-control-input:disabled {
        &:checked ~ .custom-control-label::before {
            @include gradient-bg($custom-control-indicator-checked-disabled-bg);
        }
    }
}

.custom-switch {
    padding-left: $custom-switch-width + $custom-control-gutter;
    .custom-control-label {
        &::before {
            left: -($custom-switch-width + $custom-control-gutter);
            width: $custom-switch-width;
            pointer-events: all;
            border-radius: $custom-switch-indicator-border-radius;
        }
        &::after {
            top: add(($font-size-base * $line-height-base - $custom-control-indicator-size) * .5, $custom-control-indicator-border-width * 2);
            left: add(-($custom-switch-width + $custom-control-gutter), $custom-control-indicator-border-width * 2);
            width: $custom-switch-indicator-size;
            height: $custom-switch-indicator-size;
            background-color: $custom-control-indicator-border-color;
            border-radius: $custom-switch-indicator-border-radius;
            @include transition(transform .15s ease-in-out, $custom-forms-transition);
        }
    }
    .custom-control-input:checked ~ .custom-control-label {
        &::after {
            background-color: $custom-control-indicator-bg;
            transform: translateX($custom-switch-width - $custom-control-indicator-size);
        }
    }
    .custom-control-input:disabled {
        &:checked ~ .custom-control-label::before {
            @include gradient-bg($custom-control-indicator-checked-disabled-bg);
        }
    }
}

.custom-select {
    display: inline-block;
    width: 100%;
    height: $custom-select-height;
    padding: $custom-select-padding-y ($custom-select-padding-x + $custom-select-indicator-padding) $custom-select-padding-y $custom-select-padding-x;
    font-family: $custom-select-font-family;
    @include rfs-font-size($custom-select-font-size);
    font-weight: $custom-select-font-weight;
    line-height: $custom-select-line-height;
    color: $custom-select-color;
    vertical-align: middle;
    background: $custom-select-bg $custom-select-background;
    border: $custom-select-border-width solid $custom-select-border-color;
    @include border-radius($custom-select-border-radius, 0);
    @include box-shadow($custom-select-box-shadow);
    appearance: none;
    &:focus {
        border-color: $custom-select-focus-border-color;
        outline: 0;
        @if $enable-shadows {
            @include box-shadow($custom-select-box-shadow, $custom-select-focus-box-shadow);
        }
        @else {
            box-shadow: $custom-select-focus-box-shadow;
        }
        &::-ms-value {
            color: $input-color;
            background-color: $input-bg;
        }
    }
    &[multiple],
    &[size]:not([size="1"]) {
        height: auto;
        padding-right: $custom-select-padding-x;
        background-image: none;
    }
    &:disabled {
        color: $custom-select-disabled-color;
        background-color: $custom-select-disabled-bg;
    }
    &::-ms-expand {
        display: none;
    }
    &:-moz-focusring {
        color: transparent;
        text-shadow: 0 0 0 $custom-select-color;
    }
}
.custom-select-sm {
    height: $custom-select-height-sm;
    padding-top: $custom-select-padding-y-sm;
    padding-bottom: $custom-select-padding-y-sm;
    padding-left: $custom-select-padding-x-sm;
    @include rfs-font-size($custom-select-font-size-sm);
}
.custom-select-lg {
    height: $custom-select-height-lg;
    padding-top: $custom-select-padding-y-lg;
    padding-bottom: $custom-select-padding-y-lg;
    padding-left: $custom-select-padding-x-lg;
    @include rfs-font-size($custom-select-font-size-lg);
}

.custom-file {
    position: relative;
    display: inline-block;
    width: 100%;
    height: $custom-file-height;
    margin-bottom: 0;
}
.custom-file-input {
    position: relative;
    z-index: 2;
    width: 100%;
    height: $custom-file-height;
    margin: 0;
    overflow: hidden;
    opacity: 0;
    &:focus ~ .custom-file-label {
        border-color: $custom-file-focus-border-color;
        box-shadow: $custom-file-focus-box-shadow;
    }
    &[disabled] ~ .custom-file-label,
    &:disabled ~ .custom-file-label {
        background-color: $custom-file-disabled-bg;
    }
    @each $lang, $value in $custom-file-text {
        &:lang(#{$lang}) ~ .custom-file-label::after {
            content: $value;
        }
    }
    ~ .custom-file-label[data-browse]::after {
        content: attr(data-browse);
    }
}
.custom-file-label {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1;
    height: $custom-file-height;
    padding: $custom-file-padding-y $custom-file-padding-x;
    overflow: hidden;
    font-family: $custom-file-font-family;
    font-weight: $custom-file-font-weight;
    line-height: $custom-file-line-height;
    color: $custom-file-color;
    background-color: $custom-file-bg;
    border: $custom-file-border-width solid $custom-file-border-color;
    @include border-radius($custom-file-border-radius);
    @include box-shadow($custom-file-box-shadow);
    &::after {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        z-index: 3;
        display: block;
        height: $custom-file-height-inner;
        padding: $custom-file-padding-y $custom-file-padding-x;
        line-height: $custom-file-line-height;
        color: $custom-file-button-color;
        content: "Browse";
        @include gradient-bg($custom-file-button-bg);
        border-left: inherit;
        @include border-radius(0 $custom-file-border-radius $custom-file-border-radius 0);
    }
}

.custom-range {
    width: 100%;
    height: add($custom-range-thumb-height, $custom-range-thumb-focus-box-shadow-width * 2);
    padding: 0;
    background-color: transparent;
    appearance: none;
    &:focus {
        outline: 0;
        &::-webkit-slider-thumb {
            box-shadow: $custom-range-thumb-focus-box-shadow;
        }
        &::-moz-range-thumb {
            box-shadow: $custom-range-thumb-focus-box-shadow;
        }
        &::-ms-thumb {
            box-shadow: $custom-range-thumb-focus-box-shadow;
        }
    }
    &::-moz-focus-outer {
        border: 0;
    }
    &::-webkit-slider-thumb {
        width: $custom-range-thumb-width;
        height: $custom-range-thumb-height;
        margin-top: ($custom-range-track-height - $custom-range-thumb-height) * .5;
        @include gradient-bg($custom-range-thumb-bg);
        border: $custom-range-thumb-border;
        @include border-radius($custom-range-thumb-border-radius);
        @include box-shadow($custom-range-thumb-box-shadow);
        @include transition($custom-forms-transition);
        appearance: none;
        &:active {
            @include gradient-bg($custom-range-thumb-active-bg);
        }
    }
    &::-webkit-slider-runnable-track {
        width: $custom-range-track-width;
        height: $custom-range-track-height;
        color: transparent; // Why?
        cursor: $custom-range-track-cursor;
        background-color: $custom-range-track-bg;
        border-color: transparent;
        @include border-radius($custom-range-track-border-radius);
        @include box-shadow($custom-range-track-box-shadow);
    }
    &::-moz-range-thumb {
        width: $custom-range-thumb-width;
        height: $custom-range-thumb-height;
        @include gradient-bg($custom-range-thumb-bg);
        border: $custom-range-thumb-border;
        @include border-radius($custom-range-thumb-border-radius);
        @include box-shadow($custom-range-thumb-box-shadow);
        @include transition($custom-forms-transition);
        appearance: none;
        &:active {
            @include gradient-bg($custom-range-thumb-active-bg);
        }
    }
    &::-moz-range-track {
        width: $custom-range-track-width;
        height: $custom-range-track-height;
        color: transparent;
        cursor: $custom-range-track-cursor;
        background-color: $custom-range-track-bg;
        border-color: transparent; // Firefox specific?
        @include border-radius($custom-range-track-border-radius);
        @include box-shadow($custom-range-track-box-shadow);
    }
    &::-ms-thumb {
        width: $custom-range-thumb-width;
        height: $custom-range-thumb-height;
        margin-top: 0; // Edge specific
        margin-right: $custom-range-thumb-focus-box-shadow-width; // Workaround that overflowed box-shadow is hidden.
        margin-left: $custom-range-thumb-focus-box-shadow-width;  // Workaround that overflowed box-shadow is hidden.
        @include gradient-bg($custom-range-thumb-bg);
        border: $custom-range-thumb-border;
        @include border-radius($custom-range-thumb-border-radius);
        @include box-shadow($custom-range-thumb-box-shadow);
        @include transition($custom-forms-transition);
        appearance: none;
        &:active {
            @include gradient-bg($custom-range-thumb-active-bg);
        }
    }
    &::-ms-track {
        width: $custom-range-track-width;
        height: $custom-range-track-height;
        color: transparent;
        cursor: $custom-range-track-cursor;
        background-color: transparent;
        border-color: transparent;
        border-width: $custom-range-thumb-height * .5;
        @include box-shadow($custom-range-track-box-shadow);
    }
    &::-ms-fill-lower {
        background-color: $custom-range-track-bg;
        @include border-radius($custom-range-track-border-radius);
    }
    &::-ms-fill-upper {
        margin-right: 15px; // arbitrary?
        background-color: $custom-range-track-bg;
        @include border-radius($custom-range-track-border-radius);
    }
    &:disabled {
        &::-webkit-slider-thumb {
            background-color: $custom-range-thumb-disabled-bg;
        }
        &::-webkit-slider-runnable-track {
            cursor: default;
        }
        &::-moz-range-thumb {
            background-color: $custom-range-thumb-disabled-bg;
        }
        &::-moz-range-track {
            cursor: default;
        }
        &::-ms-thumb {
            background-color: $custom-range-thumb-disabled-bg;
        }
    }
}

.custom-control-label::before,
.custom-file-label,
.custom-select {
    @include transition($custom-forms-transition);
}

//
// Block button
//

$btn-block-spacing-y:         .5rem !default;

.btn-block {
    display: block;
    width: 100%;
    + .btn-block {
        margin-top: $btn-block-spacing-y;
    }
}
input[type="submit"],
input[type="reset"],
input[type="button"] {
    &.btn-block {
        width: 100%;
    }
}
